Pen-clamping device for paper-ruling machines.



HOMR N. 'GRISSINGER, OF PHILADELPHIA, PENNSYLVANIA.

PEN-'CLANIPING DEVICE FOR PAPER-RULING MACHINES.

specification of Lett-ers Patent.-

Applcation filed April 21, 1904:. Serial No. 204,236.

To all 1,071,071?, it may concern:

Be it known that I, HoMER N. GRIssINGER,

` a citizen of the United States, residing in Philadelphia,Pennsylvania, have invented certain Improvements in Pen-Clamping Devicesfor Paper-Ruling Machines, of which the following is a specification.

One object of my invention isv to so construct the clamp or holder forthe pens of a ruling-machine as to insure the firm retention of saidpens under all circumstances; and a further object is to provide a metalpen-clamp with means for retaining in position the sheet or pad ofabsorbent or capillary material whereby the supply of ink is conveyed tothe pens. These objects I attain in the manner hereinafter set forth,reference being had to the accompanying drawings, in whichn Figure l isa perspective view of part of the pen-clamp of a paper-ruling machineconstructed in accordance with my invention, an Fig. 2 is a front viewof the same.

The pen-retaining bar or clamp consists of upper and lower members 1 and2, each consisting of a metallic bar or shell, preferably composed ofaluminium because of its lightness, these bars having at the rearabutting Hanges 3 and 4 and at the front converging curved portions 5and 6,'forming jaws between which the ruling-pens 7, whether single' orin groups, are clamped and firmly held, and one of the jaws-the lowerone, for example-s slotted to form a series of bent ngers which arenormal to the bases of the pens. rIhe rear flange 3 of the member 1 ofthe clamp has a projecting bar 8, whereby it is properly supported inthe ruling-machine, and each of the members of the clamp has an internallongitudinal rib or bar 9, the bar of one member of the clamp havingopenings for the passage of the confining-bolts 10 and the bar of theother member of the clamp having threaded openings for receiving thethreaded portions of said bolts, as many of the latter being employed asthe length ofthe bar may require.

Instead of using a continuous rib, as shown,

lugs may be substituted therefor, one of these lugs being located oneach clamp-bar wherever a clamp-bolt is used. Upon screwing up the boltsthe jaws 5 and 6 of the bar are pressed toward each other, so as toclamp the fiat bases of the ruling-pens between them. It frequentlyhappens,` however, that the bases of 4some of the pens or groups of pensare thicker than those of others. Hence if a pen or group of pens havingarelatively thick base is located in proximity to a pen or group of penshaving a relatively thin base the latter would not, if both jaws 5 and 6were rigid, be properly clamped, as said jaws would be held apart by therelatively thicker base and would thus be prevented from obtaining aproper grip upon the thinner base. I therefore impart longitudinaliiexibility to one of the jaws, preferably to the lower jaw 6, byforming transverse slots therein, so thatsaid jaw presents a series ofelasticfingers each` preferably of no greater width than the base of asingle pen 7. Hence that portion of the jaw which clamps and holds thebase of each pen or group of pens is wholly independent of any otherportion of the jaw, and consequently is not affected thereby, andbecause of this independence variation in the thickness of the bases ofdifferent-pens or groups of pens which may be held between the jaws ofthe clamp-bar cannot affect the firm retention of either of them.

The supply of ink is usually conveyed to the ruling-pens by means of asheet orv pad of absorbent or capillary material saturated with the inkand resting upon the top of the upper member l of the clamp-bar, and inorder to retain this ink-supplying sheet or pad in its proper positionin respect to the pens I recess said upper member 1 of the clamp-fl barfor the reception of a wooden bar or strip 11, into which can be readilydriven the pins Y Y 12 which engage with the absorbent pad or strip, asshown in Fig.1, in which said pad,

or strip is illustrated by dotted lines.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. A penholder for paper-ruling machines comprisingupper and lower members, each having-front clamping-jawsA and abuttingrear anges, and each having an internal longitudinal rib of a lessextent of projection than the rear flange, and one or moreclampingbolts, each passing through an opening in the Patented Aug. 1,1905.

ribbed portion of one member and engaging In testimony WbereofIbavesigned myname a threaded opening in the ribbed portion of to thisspecification in the presence of two subthe other member, substantiallyas specified. soribing Witnesses.

2. A penholder for paper-ruling machines comprising upper and lowerclamping-jaws, HOMER N GRIbbINlIER" one of which is slotted and forms aseries of Witnesses: bentngers whose ends are normal to and WILLIAM F.BEAToN,

bear upon the bases of the pens. WALTER CHIsM.

